An equal mix of pair and shaft curvature reduced SEEG shape error by 16.1 percent between record ends in 24 participants at 20–100 Hz with 55–65 Hz removed
We tested whether a SEEG pair adds spectral information beyond other pairs on its named electrode shaft. We used archived public spectra from OpenNeuro ds005624 version 1.0.0. The test had 24 participants, 34 records, and 4,091 eligible pair records. Each shaft template excluded all pairs that shared a contact with the target. Both methods used the target slope from the first minute. An equal mix of target and donor curvature reduced last-minute centered log-power shape error by 16.1 percent. The 95 percent participant bootstrap interval was 12.3 to 20.7 percent. All 24 participant scores improved. A population interpretation assumes independent, exchangeable participants. The measured shape contains information beyond the tested shaft template. Stable noise, recording effects, and oscillatory peaks can also supply this information. This secondary analysis does not identify a neural cause or establish an independent cohort replication. All fixed checks are reported. A repeat produced identical numerical files. Fresh pinned raw ranges reproduced both excerpts for two participants. The package preserves all inputs, source pins, code, coefficients, scores, bootstrap draws, and repeat instructions.
stereoelectroencephalography · SEEG · spectral curvature · power spectrum · within-shaft transfer · shape prediction · participant bootstrap
References
3- usesContact group corrections reduced mean theta to high gamma ratio error compared with shaft corrections in paired 60 second SEEG excerpts from 36 patients sci:sha256:671cd1f735f316538c1b11e2768a26baa44164d9a13c7dfe64f15c60dd31771c
Uses the reported local-versus-shaft comparison as scientific context; no numerical input is reused.
- usesA quadratic log-frequency model lowers SEEG shape error between the first and last minute in 24 participants at 20–100 Hz with 55–65 Hz removed sci:sha256:10c57f5b0211dec06505fe654fde6063e899c4d880876ceb72b215b7dee8baa4
Uses the unchanged compact spectra, source pins, raw examples, and retrieval code; adds a within-shaft curvature transfer test.
- usesdoi:10.18112/openneuro.ds005624.v1.0.0
The analysis uses archived spectra and source data from OpenNeuro ds005624 version 1.0.0.
Cited by
2 publicationsPublic catalog entries on Sciscape.
- usesTuning across sessions gave 0.20% lower SEEG detail error in seven participants at 20–100 Hz. The interval included zero.
This report supplied the donor rule that excludes pairs with shared target contacts. Its prior half-copy result informed the fixed comparator before the new analysis. We extended this rule to matched contacts across session labels and compared two training domains.
- usesTwo nearby donors reduced withheld SEEG slope error by 18.8% versus shaft means across record ends in 24 participants at 20–100 Hz without 55–65 Hz
This study used the prior shaft curvature question and contact exclusion approach to define the donor comparison. The earlier numerical results were known before the local plan, but are not numerical inputs to this analysis.